android 遍曆所有檔案夾和子目錄搜尋檔案

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java代碼：

import java.io.File;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class ShuosouwenjianActivity extends Activity  implements OnClickListener  {          private File file;      private String path;      private String info;      private String key; //關鍵字      private TextView result; // 顯示結果      private EditText et; // 編輯view      private Button search_btn; // button view          @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);              result = (TextView)findViewById(R.id.TextView_Result);          et = (EditText)findViewById(R.id.key);          search_btn = (Button)findViewById(R.id.button_search);         // file = new File(Environment.getExternalStorageDirectory().getPath());          file = new File("/sdcard/");          info = getString(R.string.info);                    search_btn.setOnClickListener(this);      }            @Override     public void onClick(View v) {          // TODO Auto-generated method stub          path = "";          result.setText("");          key = et.getText().toString();          BrowserFile(file);      }           public void BrowserFile(File fileold) {          if (key.equals("")) {              Toast.makeText(this, getString(R.string.pleaseInput), Toast.LENGTH_LONG).show();          } else {           search(fileold);              if (result.getText().equals("")) {                  Toast.makeText(this, getString(R.string.notFound), Toast.LENGTH_SHORT).show();              }          }      }    private void search(File fileold)    {     try{  File[] files=fileold.listFiles();  if(files.length>0)  {     for(int j=0;j<files.length;j++)     {   if(!files[j].isDirectory())   {   if(files[j].getName().indexOf(key)> -1)    {    path += "\n" + files[j].getPath();         result.setText(info+path);          //shuju.putString(files[j].getName().toString(),files[j].getPath().toString());    }   }   else{    this.search(files[j]);   }     }  }  }     catch(Exception e)     {          }    }}

MAIN.XML代碼：

<?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:id="@+id/widget0"     >       <Button     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:id="@+id/button_search"     android:layout_x="253px"     android:layout_y="5px"     android:text="@string/toSearch" /> <EditText     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:id="@+id/key"    android:text="821077962.db"    /> <TextView     android:layout_width="fill_parent"     android:layout_height="370px"     android:id="@+id/TextView_Result"     android:layout_x="0px"     android:layout_y="60px" /> </AbsoluteLayout>

strings.xml代碼:

<?xml version="1.0" encoding="utf-8"?> <resources>     <string name="hello">Hello World, Activity07!</string>     <string name="app_name">檔案搜尋</string>     <string name="toSearch">搜尋</string>     <string name="info">系統SDCard目錄檔案路徑：\n</string>     <string name="pleaseInput">請輸入關鍵字!</string>     <string name="notFound">SD卡中沒有相關檔案!!</string>     <string name="pathError">讀取路徑出錯!!</string> </resources> 

 

android 遍曆所有檔案夾和子目錄搜尋檔案